aarch64: Add new +xs flag

GCC does not emit tlbi instructions, so this only affects the flags
passed through to the assembler.

gcc/ChangeLog:

	* config/aarch64/aarch64-arches.def (V8_7A): Add XS.
	* config/aarch64/aarch64-option-extensions.def (XS): New flag.

diff --git a/gcc/config/aarch64/aarch64-arches.def b/gcc/config/aarch64/aarch64-arches.def
index ff873a372431cb7467cb86834daf41a2ce50c06a..fd4881a8ebfbd3446e2995b9dcf1133918665be6 100644 (file)
--- a/gcc/config/aarch64/aarch64-arches.def
+++ b/gcc/config/aarch64/aarch64-arches.def
@@ -37,7 +37,7 @@ AARCH64_ARCH("armv8.3-a",     generic_armv8_a,   V8_3A,     8,  (V8_2A, PAUTH, R
 AARCH64_ARCH("armv8.4-a",     generic_armv8_a,   V8_4A,     8,  (V8_3A, F16FML, DOTPROD, FLAGM, RCPC2))
 AARCH64_ARCH("armv8.5-a",     generic_armv8_a,   V8_5A,     8,  (V8_4A, SB, SSBS, PREDRES, FRINTTS, FLAGM2))
 AARCH64_ARCH("armv8.6-a",     generic_armv8_a,   V8_6A,     8,  (V8_5A, I8MM, BF16))
-AARCH64_ARCH("armv8.7-a",     generic_armv8_a,   V8_7A,     8,  (V8_6A, WFXT))
+AARCH64_ARCH("armv8.7-a",     generic_armv8_a,   V8_7A,     8,  (V8_6A, WFXT, XS))
 AARCH64_ARCH("armv8.8-a",     generic_armv8_a,   V8_8A,     8,  (V8_7A, MOPS))
 AARCH64_ARCH("armv8.9-a",     generic_armv8_a,   V8_9A,     8,  (V8_8A, CSSC))
 AARCH64_ARCH("armv8-r",       generic_armv8_a,   V8R  ,     8,  (V8_4A))

diff --git a/gcc/config/aarch64/aarch64-option-extensions.def b/gcc/config/aarch64/aarch64-option-extensions.def
index d0d01f91c0fc3ec6781d879cb2b123ccdd8edeec..a1133accfce53d227c7ecd8af70f93106c2656c8 100644 (file)
--- a/gcc/config/aarch64/aarch64-option-extensions.def
+++ b/gcc/config/aarch64/aarch64-option-extensions.def
@@ -227,6 +227,8 @@ AARCH64_OPT_EXTENSION("ls64", LS64, (), (), (), "")
 
 AARCH64_OPT_FMV_EXTENSION("wfxt", WFXT, (), (), (), "wfxt")
 
+AARCH64_OPT_EXTENSION("xs", XS, (), (), (), "")
+
 AARCH64_OPT_EXTENSION("sme-f64f64", SME_F64F64, (SME), (), (), "smef64f64")
 
 AARCH64_FMV_FEATURE("sme-f64f64", SME_F64, (SME_F64F64))